Bicycle attachment



v(No Model.)

W. P. BRCDBECK.- BICYCLE ATTACHMENT.

No. 588,551. 'I Patented Aug.'24, 1897.

UNITED. STATES PATENT Genion.

wiLLiAM PEN BRoDBEor, on GALLATIN, MISSOURI.

BicYcLE ATTACHMENT'.

SPECIFICATION formiigpart of Letters Patent No. 588,551', dated'ugtust 2.4, 1897.

:Applicationled September 23, 1896. Serial No. 606,730. (No model.)

to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same. Y

This invention relates to a novel construction in a railroad-tricycle; and it consists in the features of construction hereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, Figure l lis a side elevation of a ti'icycle constructed' in accord-A be used as an ordinary bicycle or as atricycle. This attachment consists of a lateral arm 4, the front and rear braces 5 and 6, and

an upright post 7. The lateral arm 4 is rigidly secured to the lower end portion of the post 7, while this post 7 is `adapted to be secured to the frame of the bicycle and to a projection 8, extending from the hub of the pedalshaft, by removable clamps9, as shown.

The brace rods 5 and 6 are rigidly secured at their outer ends to the outer end portions of the lateral arm 4, while at their inner ends they are provided with clamps 11 to be fastened upon the steering-post and rear'end portion of the frame of a machine. In this way it will be'seen that I provide an attachment for an ordinary bicycle by means of which it can be changed into a tricycle, as shown. The construction is light, simple, and inexpensive and can be readily applied and removed. l

I I have also shown a novel construction in a wheel, which is adapted to be used in connection with the tricycle when the same is employed as arailroad-tricycle. In the drawings,"l2 is the rim, and 13 the tire, of an ordinary bicycle-wheel. This improvement consists of a iianged tire 14, adapted to fit upon and be secured to the wheel. This flanged tire has an annular seat to receive the rubber tire of the bicycle, and on the louter edges of this attachmentvare the flanges 15 to embrace the sides of the rail. This flanged tire'in cross-section approximates the cross-section of the rail, so that it ts snugly thereon. For the purpose of attaching this iianged tirelto the bicycle-wheel there are secured to the-g,

main portion of the tire, adjacent to the seat 16 therein, belting or straps `17 whichextend partly around the tire and are provided near their inner edges lwith V'eyelets rto receive the lacing-strings, lso that the inner edges of these straps 17 may be laced together to iirmlyhold the iianged tire upon the bicycle-wheel.

It will be 'readily lseen from the foregoing description that atire made in this manner provides a convenient arrangement to give the wheels of a tricycle a firm vbearing upon the Vrails o f a railroad-track, since the ianges 5 of theattachment serve to guide'and steady thewheel. It willbe further noted that this attachment can be removed by unlacing, so that the bicycle can be used in the ordinary manner. It will be understood, l'of course,

.that this is only one mode of attaching this case would be preferably made of hard rubber IOG l. The combination with the frame of t bicycle, of an attachment consisting of an npright post removably secured to the frame of the'bicyele, a lateral arm 4 secured to said post and provided at its free end with :t Wheel, and brace-rods 5 and 6 secured at their outer ends to the outer end portions of said arm and removably secured at their inner ends to the frame of the bicycle, substantially as described.

2. A flanged Wheel-tire consisting of L circular body portion hzwingan interior curved seat to ht upon :t curved tire or rim, ont

WILLIAM PEN BRODBECK.

lVtnesses:

J. P. OGWENS, J. L. NETHERTON.

presence of two subscrib- 2o 

